Frank, Please send the entire ModemData.txt if you want robust info about a particular modem, or to enable me to update its internal repository But briefly, there are a family of modem controllers in a family designated AC'97, in which the controller can host a varierty of different Subsystems modem chips. It is the Subsystem chip which controls the necessary software. If the Subsystem is a Conexant type the hsfmodem software is necessary. All other AC'97 controller types are supported by one of the low level ALSA drivers (snd-intel8x0m, snd-attiixp-modem, snd-via82xx-modem) complemented by slmodemd. This support by slmodemd is possible because the Subsystems do little more under Microsoft than specify which software package to use. Under Linux, these specs are ignored and the slmodemd (credit to Sasha Khapyorsky) provides all the higher level function, once one of the ALSA drivers established contact with modem hardware. Quite separately slmodemd + driver slamr supports several Smartlink chip modems and one Pctel chipset. All this info is embedded in scanModem, which can be browsed with a text editor For example the paragraph is a section from the internal scanModem repository, with data accumulated on Subsystems under the primary AC97 controller chip 8086:2486: elif test "$PCIDEV" = 8086:2486 ; then # 8086:2486 82801CA/CAM AC97 CAM AC'97 ICH3 cat<<END | grep $SUBSYS | cut -d' ' -f1 >$TMPM.2 CXT 1668:5421 14f1:5421 104d:80e7 104d:8100 SIL27 1025:0020 , 1014:0223 1014:0503 IBM 1014:0227 103b:0757 ,10cf:10d1, BCM64 14e4:4d64 SIL24 144f:1050 SIL21 134d:4c21 1043:1496 SIL22 14c0:0012 COMPAL Electronics Inc ============= For Subsystems in the line: CXT 1668:5421 14f1:5421 104d:80e7 104d:8100 hsfmodem software is necessary For all the lines, the snd-intel8x0m driver + slmodemd provide service, even though under Microsoft the software called would be from AgereSystems for the SIL27 line , Broadcom for BCM64, Pctel for SIL21 and Smartlink for SIL22 and SIL24 lines MarvS scanModem maintainer On Fri, Dec 25, 2009 at 6:00 AM, gpwmda <gpwmda@xxxxxxxxxxxxxx> wrote: > hi modem men, > > on http://listing.driveragent.com/pci/1106/3068/* > > you can see that Askey ships its V1456VQL-P1 modem with the Smartlink > driver, while other manufacturers ship PCTel's "HSP56MR softmodem" > with "Host Signal Processing" since the codec silicon is by PCTel (now > Conexant). > > does that mean that there is more hardware that works with slmodem, > which in Windows does not use the SLmodem driver ? > > quixotic Frank >